``` 12:14:41 ~/c/haddock-th-foreign-repro$ rm -r dist-newstyle/ 12:14:43 ~/c/haddock-th-foreign-repro$ cabal build --enable-documentation Resolving dependencies... Build profile: -w ghc-9.8.2 -O1 In order, the following will be built (use -v for more details): - repro-0.1.0.0 (lib) (first run) Configuring library for repro-0.1.0.0.. Preprocessing library for repro-0.1.0.0.. Building library for repro-0.1.0.0.. [1 of 3] Compiling F ( src/F.hs, /home/tom/code/haddock-th-foreign-repro/dist-newstyle/build/x86_64-linux/ghc-9.8.2/repro-0.1.0.0/build/F.o, /home/tom/code/haddock-th-foreign-repro/dist-newstyle/build/x86_64-linux/ghc-9.8.2/repro-0.1.0.0/build/F.dyn_o ) [2 of 3] Compiling A ( src/A.hs, /home/tom/code/haddock-th-foreign-repro/dist-newstyle/build/x86_64-linux/ghc-9.8.2/repro-0.1.0.0/build/A.o, /home/tom/code/haddock-th-foreign-repro/dist-newstyle/build/x86_64-linux/ghc-9.8.2/repro-0.1.0.0/build/A.dyn_o ) src/A.hs:5:1: warning: [GHC-66111] [-Wunused-imports] The import of ‘F’ is redundant except perhaps to import instances from ‘F’ To import instances alone, use: import F() | 5 | import F | ^^^^^^^^ [3 of 3] Compiling B ( src/B.hs, /home/tom/code/haddock-th-foreign-repro/dist-newstyle/build/x86_64-linux/ghc-9.8.2/repro-0.1.0.0/build/B.o, /home/tom/code/haddock-th-foreign-repro/dist-newstyle/build/x86_64-linux/ghc-9.8.2/repro-0.1.0.0/build/B.dyn_o ) src/B.hs:8:2: warning: [GHC-38417] [-Wmissing-signatures] Top-level binding with no type signature: foo :: String | 8 | $([d| foo = $(return $ kaas) |]) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Preprocessing library for repro-0.1.0.0.. Running Haddock on library for repro-0.1.0.0.. Warning: The documentation for the following packages are not installed. No links will be generated to these packages: array-0.5.6.0, base-4.19.1.0, deepseq-1.5.0.0, ghc-bignum-1.3, ghc-boot-th-9.8.2, ghc-prim-0.11.0, pretty-1.1.3.6, template-haskell-2.21.0.0 [1 of 3] Compiling F ( src/F.hs, /tmp/ghc879140_0/ghc_4.o, /tmp/ghc879140_0/ghc_4.dyn_o ) [2 of 3] Compiling A ( src/A.hs, /tmp/ghc879140_0/ghc_2.o, /tmp/ghc879140_0/ghc_2.dyn_o ) src/A.hs:5:1: warning: [GHC-66111] [-Wunused-imports] The import of ‘F’ is redundant except perhaps to import instances from ‘F’ To import instances alone, use: import F() | 5 | import F | ^^^^^^^^ [3 of 3] Compiling B ( src/B.hs, nothing ) : error: GHC.Linker.Loader.dynLoadObjs: Loading temp shared object failed During interactive linking, GHCi couldn't find the following symbol: /tmp/ghc879140_0/libghc_13.so: undefined symbol: some_c_function This may be due to you not asking GHCi to load extra object files, archives or DLLs needed by your current session. Restart GHCi, specifying the missing library using the -L/path/to/object/dir and -lmissinglibname flags, or simply by naming the relevant files on the GHCi command line. Alternatively, this link failure might indicate a bug in GHCi. If you suspect the latter, please report this as a GHC bug: https://www.haskell.org/ghc/reportabug load' failed Warning: Failed to build documentation for repro-0.1.0.0. 12:14:47 ~/c/haddock-th-foreign-repro$ ```